Abstract

In this work, the authors report on significant flux pinning enhancement in that has been easily obtained using a liquid additive, silicon oil. bulk samples with 0 up to silicon oil added were prepared by an in situ reaction. Results showed that the Si and C released from the decomposition of the silicon oil formed and substituted into B sites, respectively. Increasing the amount of the Si oil up to has resulted in the reduction of the lattice parameters, as well as and values, accompanied by a significant enhancement of , , and .